Can the earth provide?

Episode number 5 of Series “The Earth and mankind”. When the earth’s capacity to produce meat and potatoes, wheat, rice or corn is exhausted, will science be able to feed us? Sea plankton, algae, hydroponics, synthetics - all hold great potential for development. But the vital questions are: How much? How soon? Animation: Rene Jodoin, Kaj Pindal Narrated by Stanley Burke.